21881845

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1163}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 27153792

約数和(自身を除く): 5271947

約数列:

[1, 5, 53, 71, 265, 355, 1163, 3763, 5815, 18815, 61639, 82573, 308195, 412865, 4376369, 21881845]

約数ペア:

[(1, 21881845), (5, 4376369), (53, 412865), (71, 308195), (265, 82573), (355, 61639), (1163, 18815), (3763, 5815)]